30782053 has 4 divisors (see below), whose sum is σ = 32592780. Its totient is φ = 28971328.

The previous prime is 30782041. The next prime is 30782069. The reversal of 30782053 is 35028703.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8191044 + 22591009 = 2862^2 + 4753^2 .

It is a cyclic number.

It is not a de Polignac number, because 30782053 - 2¹⁷ = 30650981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30786053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905338 + ... + 905371.

It is an arithmetic number, because the mean of its divisors is an integer number (8148195).

Almost surely, 2^30782053 is an apocalyptic number.

It is an amenable number.

30782053 is a deficient number, since it is larger than the sum of its proper divisors (1810727).

30782053 is a wasteful number, since it uses less digits than its factorization.

30782053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810726.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 30782053 is about 5548.1576221301. The cubic root of 30782053 is about 313.4001455785.

The spelling of 30782053 in words is "thirty million, seven hundred eighty-two thousand, fifty-three".